Oil Pump: Service and Repair

Oil pump

To remove

The oil pump can be removed with the engine in the car.

1 Clean the area round the oil pump.




2 Remove the crankshaft pulley centre-bolt and the pulley from the crankshaft. Immobilize the crankshaft by attaching locking segment 8392987 to the flywheel ring gear.




3 Remove the oil pump retaining bolts and extract the pump.

To check




Use a straightedge and feeler gauge to check the end float between the pump body and the gearwheel.

Permissible end float: 0.03-0.08 mm (0.0012 - 0.0031 in)

To refit

1 Oil the gearwheels.




2 Refit the ring gear with the mark on its face uppermost.




3 Fit a new seal in the groove in the pump body and check that the locating dowel is fitted.




4 Refit the pump. Extract the pump gear slightly and engage the dog on the gear in the slot in the hub.








5 Remove the oil filter adaptor casting and fill the oilway to the oil pump pressure side with engine oil.

Caution! The oil pump must be primed with oil prior to fitting.

6 Refit the oil filter adaptor.

7 Fit the pulley.
Tightening torque: 190 Nm (140 ft lb)